Estone Mini Pocket Waterproof Business ID Credit Card Wallet Holder Aluminum Case Box (Blue) Aluminum metal prevents hacking or accidental reading of your contactless payment cards and protects cards from demagnetization damages Designed for money, business card, credit card, ID card, and any other cards. It protects your cards clean and undamaged, elegant design and makes your business life convenient and effective! Six expandable pockets; aluminum outer shell; ABS plastic interior; PVC plastic divider Click button for easy opening and closing